Marketers Track Flu Outbreaks Closely

Key Is Rolling Out Ads Where Symptoms Are Just Breaking Out

This winter when you get flu shots, research symptoms online or complain about coughs and body aches on Twitter, consumer-products makers will be watching.

The flu is a big moneymaker for companies that produce tissues, disinfecting wipes and cold remedies, and they are finding new ways to predict and chase outbreaks around the country to make the most of the opportunity.